RESUMEN
Objective To investigate the clinical features and maternal and infant outcomes of super-aged pregnant women.Methods The clinical data of pregnant women who gave birth in Maternity and Child Health Care Hospital Affiliated to Xuzhou Medical University from January 2017 to June 2022 were retrospectively analyzed.According to the age of pregnant women,they were divided into super-aged group(≥40 years old,1822 cases)and age-appropriate group(<35 years old,1827 cases).The general conditions,pregnancy complication and comorbidity,delivery outcomes and neonatal outcomes of two groups were compared.Results The number of pregnancies and number of delivery in super-aged group were significantly higher than those in age-appropriate group,and the gestational week of delivery was earlier than that in age-appropriate group(P<0.01).There was no statistical significance in the proportion of assisted reproduction between two groups(P>0.05).The incidences of gestational hypertension,gestational diabetes mellitus,scarring uterus,placenta previa and preterm delivery in super-aged group were significantly higher than those in age-appropriate group(P<0.05),while the incidences of premature rupture of membranes,placental abruption and fetal distress were lower than those in age-appropriate group(P<0.05).The rate of cesarean section and the proportion of uterine binding in super-aged group were significantly higher than those in age-appropriate group(P<0.05),and the rates of vaginal delivery and lateral perineal resection were significantly lower than those in age-appropriate group(P<0.05).There was no significant difference in the average body weight of newborns between the two groups(P>0.05),but the rates of low birth weight infants,macrosomia and neonatal asphyxia in super-aged group were significantly higher than those in age-appropriate group(P<0.05).Conclusion The incidences of pregnancy complications and comorbidity,cesarean section and neonatal complications increased in super-aged pregnant women.We should attach great importance to the prenatal health care and perinatal management of super-aged pregnant women.